New insights into viscosity abnormality of sodium alginate aqueous solution

Effects of surface functionalized graphene oxide on the behavior of sodium alginate

“…Among various nanofillers, graphene, a single-atom-thick sheet of sp 2 -hybridized carbon atoms (Ma, Chang, Zheng, & Ma, 2013;Park and Ruoff, 2009), has been attracted a great deal of attention in recent years owning to its low-cost, exceptional electron transport, high surface area and mechanical properties (Kim, Abdala, & Macosko, 2010;Zhong, Huang, Yang, & Cheng, 2011). However, it is difficult to obtain a good dispersion in polymer matrixes, resulting in serious phase separation and worse interfacial adhesion (Yuan, Zou, Liao, & Dai, 2012;Wang, Jin, & Song, 2012).…”

“…Moreover, the nitrogen containing functional groups of MGO can be protonated to become multivalent nanoparticle, then readily form electrostatic interactions with negative charges COO − groups on sodium alginate chains (Zhong et al, 2011), which can improve the compatibility with the matrix. Therefore, MGO can form much stronger electrostatic interactions and hydrogen bonds with the matrix (Scheme 1).…”

The correlation properties of poly(vinylpyrrolidone) in N,N-dimethylformamide+water by conductometric study

“…The parameters B Y can be interpreted as being based on three terms, namely of physical, chemical, and structural effects. The physical effects involve dispersion forces and non-specific interactions in the mixture [31], adding positive contributions to B kH . The chemical and specific interactions result in the increase of the concentration of DMF, which includes the transfer forces and other complex forces form which interactions between the two species.…”

Structure evolution of pullulan–alginate edible films during drying studied by low‐field NMR

“…The proportion and distribution of M and G blocks determine the physicochemical properties of the biopolymer. Sodium alginate is a polyelectrolyte with negative charges on its backbone (Zhong, Huang, Yang, & Cheng, 2010). In the previous study (Xiao, Lim, & Tong, 2012), pullulan and alginate were blended and dissolved in water to form homogeneous film-forming solutions, the solutions, upon drying, yielded coherent films with strong physical and low barrier properties.…”